/******************************************************************************
* Copyright (c) 2011, Michael P. Gerlek (mpg@flaxen.com)
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following
* conditions are met:
*
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*       notice, this list of conditions and the following disclaimer.
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*       notice, this list of conditions and the following disclaimer in
*       the documentation and/or other materials provided
*       with the distribution.
*     * Neither the name of Hobu, Inc. or Flaxen Geo Consulting nor the
*       names of its contributors may be used to endorse or promote
*       products derived from this software without specific prior
*       written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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****************************************************************************/

#include <pdal/MultiFilterIterator.hpp>
#include <pdal/MultiFilter.hpp>

namespace pdal
{


MultiFilterSequentialIterator::MultiFilterSequentialIterator(const MultiFilter& filter)
    : StageSequentialIterator(filter)
    , m_filter(filter)
    , m_prevIterator(NULL)
    , m_iteratorIndex(0)
{
    for (size_t i=0; i<filter.getPrevStages().size(); ++i)
    {
        const Stage* stage = filter.getPrevStages()[i];
        m_prevIterators.push_back(stage->createSequentialIterator());
    }

    return;
}


MultiFilterSequentialIterator::~MultiFilterSequentialIterator()
{
    for (size_t i=0; i<m_prevIterators.size(); ++i)
    {
        StageSequentialIterator* iter = m_prevIterators[i];
        delete iter;
    }
}


const std::vector<StageSequentialIterator*>& MultiFilterSequentialIterator::getPrevIterators() const
{
    return m_prevIterators;
}

const StageSequentialIterator& MultiFilterSequentialIterator::getPrevIterator() const
{
    return *m_prevIterator;
}



} // namespace pdal
